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A sensitive and accurate method for the determination of ultra-trace level of cadmium in environmental waters by atomic absorption spectrometry with in situ trapping hydride in iridium coated graphite tube

✍ Scribed by Sun, Hanwen; Suo, Ran

Book ID
126688103
Publisher
Taylor and Francis Group
Year
2009
Tongue
English
Weight
287 KB
Volume
89
Category
Article
ISSN
0306-7319

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Effects of ammonium nitrate on sensitivi
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Ammonium nitrate, used as a matrix modifier in sea-water analysis to eliminate the interference of sodium chloride, degrades the pyrolytic coating on graphite-furnace tubes. The initially increased sensitivities for copper, manganese and iron are maintained for up to 15 atomizations; there is then a